Abstract: A combined combustion and exhaust gas filter plant including a combustion chamber (5) for pressurized combustion of combustible substances, a supply device (3, 8) for supplying up to 100 percent oxygen enriched combustion air to the combustion chamber (5), and a scrubber (10, 12) for pressurized cooling and washing with water of exhaust gases produced by the combustion chamber (5). The scrubber (10, 12) separates environmentally endangering materials and other contaminants from the exhaust gases and includes a deducting device for deducting the washing water and the environmentally endangering materials and other contaminants captured, dissolved or condensed in the washing water.

Abstract: A plant for separating substances from a gas flow, especially environmentally harmful heavy metals in gas form released in connection with incinerating batteries, the plant including in series connection in a gas flow circuit, a chamber for initially collecting the gas flow containing the substances to be separated; a compressor which pressurizes the gas flow; an expansion device through which the pressurized gas flow passes while rapidly lowering the pressure and temperature of the gas flow so that at least a part of the substances to be separated condense and are separated in solid or fluid state in a separation chamber, the inlet of which is connected to the outlet of the expansion device and which is provided with an outlet for the remaining gas flow which communicates with the inlet of the collecting chamber to form a closed gas-circulation circuit.